I.M.C.R. 6.1. Voluntary Appearance Under Warrant of Arrest.

If a person voluntarily appears before a magistrate while a warrant for the defendant's arrest is outstanding for a misdemeanor or contempt of court, the magistrate shall have the discretion either, (1) to require the person to appear before an arresting authority for arrest and booking before the person can appear before the magistrate or, (2) to enter an order quashing the warrant and cause a copy of the order to be sent to the agency holding the original warrant and deliver a copy of the order to the defendant.